Equipment for verifying line concentration circuit operations



Aug. 8, 1967 J. F. RETTIG ETAL 3,335,230 EQUIPMENT FOR VERIFYING LINE CONCENTR ATOR CIRCUIT OPERATIONS 51 Sheets-Sheet 2 Filed Feb. 14, 1964 t2: mCoSmE mobmzmo xuod 3 mm. mobmha 1. NE 56% #4828 N: O W 56% $94.3 1 86m mm a A $25382 $55 P m w:

F E 91 g o :23 BOSE:

mam

Aug. 8, 1967 J. F. RETTIG ETAL 3,335,230

EQUIPMENT FOR VERIFYING LINE CONCENTRATOR CIRCUIT OPERATIONS 51 Sheets-Sheet 6 Filed Feb. 14, 1964 Aug. 8, 1967 J. F. RETTIG ET AL 3,335,230

EQUIPMENT FOR VERIFYING LINE CONCENTRATOR CIRCUIT OPERATIONS 61 heets-Sheet 9 Filed Feb. 14, 1964 uomiuo uwaum H naw 08% owmmuw 216m 558 55% 55% :253 N 55% ENE 63E 836w 625% SE m o H H H m m m 3 Q .U\..\ 32mg 32% umbw 558 325% 05m: a? 3 32% U5 Ew OER U? Aug. 8, 1967 J, RETTlG ET AL 3,335,230

EQUIPMENT FOR VERIFYING LINE CONSENTRATOR CIRCUIT OPERATIONS Filed Feb. 14, 1964 Sheets-Sheet l2 h. 63 IT I I $5 2; U H 35% 8 :w: 3 9; 2m; 3%: x52 w IT 9% at: W i 351 I -51 5 23 NE 5 W f 52 0.52 232 32 $6 33 :m: 3; 9cm 5:: ox; com; I N251 b 3 aim P 11 &% 3 2 5v Elia: W 5m mg g I u 2:2 32 Q Q8 U; U 2: Q 5: f n I h :21 I M 5% W52 {:21 I w? W T@ 2; 93 Sq 0 Q 55 32 1 H 1M 32 52 1 :75 N33 T 1 \5: I In I 1 (SEE I N? 2; 1 WTW H 2; 3 1%: W E 8v iam E@ 32 -52 22 i r p J 8v s U U 3 3w D V Mm; So 2:: 3: 2a

Aug. 8, 1967 RETTK; ET AL EQUIPMENT FOR VERIFYING LINE CON CENTRATOR CIRCUIT OPERATIONS 1' heets-Shae Filed Feb. 1.4, 1964 umt omw MMVWS 3,335,230 CENTRATOR Aug. 8, 1967 J T'n ET AL EQUIPMENT FOR VERIFYING LINE CON CIRCUIT OPERATIONS Sheets-sheet 1 4 Filed Feb. 14,. 1954 ulxu: f

85: l p J; L J: U522 ta: 685% r U38 8%: J88 H825 J H SW: Z: 5%:

E: OE: 05m; m Mm 9 822 m8 I w 1v 22E V I. 4 V H w 2 0 J vb? O m ,I U252 E: U2: U5 U31} Em 2:: U2: 6Q

Aug. 8, 1967 -rn ET AL 3,335,230

EQUIPMENT FOR VERIFYING LINE CONCENTRATOR CIRCUIT OPERATIONS Filed Feb. 14, 1964 61 SheGtS-Sheet i8 NEE: m #1 9mm v OMSQ 596w v wiwumm m u Iv. ch52 i m @8035 .hzmmwma u i205 o woo mmiwuwm NE H m F bl Sheets-shat 1r) .lll' ll uouzH:

J. F RETTIG ET AL CIRCUIT OPERATIONS EQUIPMENT FOR VERIFYING LINE CONCENTRATOE Aug. 8, 1967 Filed Feb. 14, 1964 up: W629 652 mm 5Q Ems U39 .ll 32 Jfi 8 2 22m 82$ Q 6R Aug. 8, 1967 J. F. RETTIG ET AL EQUIPMENT FOR VERIFYING LINE CONCENTRATOR CIRCUIT OPERATIONS Filed Feb. 14, 1964 

1. A TELEPHONE LINE CONCENTRATOR SYSTEM INCLUDING A TELEPHONE CENTRAL OFFICE, A PLURALITY OF REMOTE SUBSTATION LINES, A LESSER PLURALITY OF TRUNKS EXTENDING FROM SAID OFFICE, REMOTE SWTICHING MEANS FOR COUPLING SAID LINES TO SAID TRUNKS UNDER CONTROL OF SAID OFFICE, AND MEANS IN SAID REMOTE SWITCHING MEANS RESPONSIVE TO SIGNALS FROM SAID OFFICE INDICATIVE OF THE SELECTION OF A PARTICULAR TRUNK FOR CONNECTION TO A SERVICE REQUESTING LINE FOR CONNECTING SAID LINE TO SAID TRUNK AND TRANSMITTING TO SAID OFFICE THE IDENTITY OF SAID CONNECTED TRUNK. 